If you're searching for a perfect ePropulsion electric outboard motor for your watercraft, make sure to get the right shaft length. Please take note that electric outboards by ePropulsion use a different shaft length than gas outboards. For electric outboards, it's calculated from the clamp bracket to the center of the propeller. For gas outboards on the other hand, the length is from the clamp bracket to the anti-ventilation plate.
*NOTE* Fully Inflatable Catamarans such as TakaCat, AirCat, Bris, ect require the SHORT Shaft - due to shallow transom depth in the water.
As you can see, our XS is close to S from Mercury. Our S is close to L from Mercury. Our L is longer than L from Mercury. See below.
To find the suitable shaft length, the principle is to make sure the top of the propeller is matched to the lowest point of the transom. In order to get the right shaft length, first, measure the transom height, the length from the top of the boat transom to the bottom of the boat.
After that, you could choose the recommended shaft length based according to the transom height.
For most small dinghies and aluminum boats under 15ft, extra short shaft and short will work, depending on the transom height, some over 15.7 inches, some not.
For boats with the transom height higher than 50 cm / 19.7 inches, a long shaft version is more suitable. For sports boats and other sailing boats it’s best to measure the distance from the water line to the top of your outboard mount.
